The electrochemical phenomena and kinetics of EDTA-copper wastewater reclamation by electrodeposition and ultrasound

Abstract

The use of ultrasound for the treatment of wastewater involves electrodeposition reactions with free metal ions but not with chelated-ions. The research in this paper looks at the electrochemical performance of ultrasound integrated with an electrodeposition technique for the reclamation of EDTA-copper wastewater. Since the pH and voltage strength are major working parameters of the technique, their effects on the copper removal, COD (chemical oxygen demand) degradation and current efficiency were investigated. According to experimental results, the ultrasound + electrodeposition technique can effectively remove copper (95.6%, w/w) and decompose the EDTA (84% COD removal) from the wastewater..